Q1. What is Kernel Panic Error and How to troubleshoot it ? Explain step by step.
Q2. How to reset Root user Password ?
Q3. Explain Boot Process step by step? Basic difference between MBR and GPT partition scheme.
Q4. What are Runlevels ? Explain its types
Q5. What is GRUB2 and how it plays important role in Booting?
Q6. How to Recover Grub Configuration file or /boot/grub2 directory if it corrupted ?
Q7. How to Recover Main kernel with rescue kernel ? What to do if both kernel images fails to load at booting?
Q8. Importance of SLA, how to prioritize tickets according to their severity level ?
Q9. Difference between Hard link and Soft Link ?
Q10. What is inode ? What information it holds and How it impact our filesystem and ways to resolve issues related to inode.
Q11. How to configure nfs server on server side as well as client side.
Q12. Define the whole process how we can create partitions on a fresh disk and how to format it with filesystem and mounting it permanently.
Q13. What is RAID ? Define its types?
Q14. How to configure Yum Repository and yum server.
Q15. Difference between FTP and HTTP ?
Q16. How to configure NTP ?
Q17. How to Resolve SSH issue ?
Q18. How to use Virtual Console to troubleshoot a server ?
Q19. How to setup LVM ? How to extend or reduce the lv or vg size and the filesystem ?
Q20. How to do patching and rollback the packages using yum if an application does not support the new version of packages ?
Q21. How to set static ip without using nmcli and nmtui ?
Q22. How to check if a filesystem got corrupted? What are the necessary step to counter this problem?
Q23. What is ACL ? How we use it ?
Q24. Brief introduction about yourself and what task you perform in your day to day life ?
Q25. What is shell scripting ? How would you use scripting to get uptime from multiple servers ?
Q26. How to boot machine in a specific runlevel at boot time